what of the average speed from 4s from 8s
A.0.5m/s
B.1m/s
C.2m/s
D.3m/s
E.9m​

What Of The Average Speed From 4s From 8sA.0.5m/sB.1m/sC.2m/sD.3m/sE.9m

Answers

Answer 1
Answer:  Choice A)  0.5 m/s

=====================================================

Explanation:

At 4 seconds, the distance is 8 meters. Note the point (4,8)

At 8 seconds, the distance is 10 meters. The point here is (8,10)

Find the slope of the line through (4,8) and (8,10)

m = (y2-y1)/(x2-x1)

m = (10-8)/(8-4)

m = 2/4

m = 1/2

m = 0.5

The average speed on this interval is 0.5 m/s

-----------------

Another way to look at it:

We've gone from 8 meters to 10 meters, so that's a change of y = 2 meters.

During this, the time has changed from 4 seconds to 8 seconds, which is a difference of x = 4 seconds.

The velocity is the rate of change of distance over time

velocity = (change in distance)/(change in time) = y/x = 2/4 = 0.5 m/s

Answer 2
It’s D that’s the answer

Related Questions

x = yz
How do you solve for z?

Answers

Answer. z=x/y. Isolate “z” by dividing “y” from both sides.
Explanation. Treat the variables like any other number(s). We can plug in numbers but you don’t have to. We must isolate z to get the answer. To do this, divide both sides by y and you get your answer of z=x/y. Hope this helps, let me know if it’s correct so others can use it :)
Good luck.


From the frame of reference of car 2, what is the velocity of car

Answers

It’s is the last one d


If the distance of an object is determined from the relation: d = a X + b Y Where: (d) is the distance covered by the body. (a) is a physical quantity which has a dimensions (L T^-1). (b) Is a physical quantity which has a dimensions (L T^-2). So: *

The dimension formula of (X) is T and that of (Y) is T^2.

The dimension formula of (X) is T and that of (Y) is T^-2

The dimension formula of (X) is T^-1 and that of (Y) is T^2.

The dimension formula of (X) is T^-1 and that of (Y) is T^-2.​

Answers

Answer:

The dimension formula of X is T and that of Y is  T^2

Explanation:

                     d = aX + bY is ACTAULLY  [tex]S = V_{i} t + \frac{1}{2} a t^{2}[/tex]

                     so v = LT^-1

                          t = T

                          numerics do not have any dimensional formula so ignore [tex]\frac{1}{2}[/tex]

                          a = LT^-2

                          t = T^2

                         So answer for x is T and y T^2

Who was the first person to walk on the moon ?

Answers

Answer:

god correct correct

Explanation:

A car traveling 6.0 m/s is uniformly accelerating at a rate of 3.0 m/s^2 for 15 seconds. What is its final velocity

Answers

Answer:

51m/s^1

Explanation:

v=u+at

v=(6)+(3)(15)

v=51m/s^1

How far will a car travel in 2 hours at 20 km/hr?
20 km
40 km
80 km
O km

Answers

Answer:

It should be 40

Answer:

I think it is 40km sorry if my Answer is wrong

can alligators drink Gatorade

Answers

Answer:

Probably not my guy

Explanation:

help? :(

A 9,300 kg. a railroad car traveling at a velocity of 15m/s strikes a second boxcar at rest. If the two cars stick together and move off with a velocity of 6m/s, what is the mass of the second car?

Answers

Answer:

m2 = 13950 [kg]

Explanation:

To solve this problem we must use the principle of conservation of linear momentum, which is defined as the product of mass by velocity, and can be determined by means of the following expression:

P = m*v

where:

P = lineal momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

Now that momentum is conserved, we need to analyze the conditions before the collision and after the collision. In this way we must propose the following equation:

ΣPbefore = ΣPafter

(m1*v1) + (m2*v2) = (m1+m2)*v3

where:

m1 = mass of the railroad car = 9300 [kg]

v1 = velocity of the railroad car before the collision = 15 [m/s]

m2 = mass of the box car [kg]

v2 = velocity of the boxcar before the collision = 0 (the car is at rest)

(m1 + m2) = combined mass of the cars, they stick together after the collision [kg]

v3 = combined velocity of the cars after the collision = 6 [m/s]

(9300*15) + (m2*0) = (m1+m2)*6

139500 = (6*9300) + 6*m2

83700 = 6*m2

m2 = 13950 [kg]

The mass of the second railroad car which was initially at rest is 13950kg.

Given the data in the question;

Mass of railroad car1; [tex]m_1 = 9300kg[/tex]Initial velocity of railroad car1; [tex]u_1 = 15m/s[/tex]

Mass of railroad car2; [tex]m_2 = \ ?[/tex]

Since railroad car2 was initially at rest,

Initial velocity of railroad car1; [tex]u_2 = 0[/tex]

After the strike, the wo cars stick together and moved

Final velocity of both railroad car1 and 2; [tex]v = 6m/s[/tex]

To determine the mass of the second railroad car, we use conservation of linear momentum:

[tex]m_1u_1 + m_2u_2 = (m_1 + m_2 )v[/tex]

We substitute our given values into the equation

[tex](9300kg * 15m/s) + ( m_2 * 0 ) = ( 9300kg + m_2 )6m/s\\\\9300kg * 15m/s = ( 9300kg + m_2 )6m/s\\\\139500kg.m/s = 55800kg.m/s + ( m_2 * 6m/s )\\\\139500kg.m/s - 55800kg.m/s = m_2 * 6m/s\\\\83700kg.m/s = m_2 * 6m/s\\\\m_2 = \frac{83700kg.m/s}{6m/s} \\\\m_2 = 13950kg[/tex]

Therefore, the mass of the second railroad car which was initially at rest is 13950kg.

Learn more: https://brainly.com/question/3919957

Please help
Quickly!!!..

Answers

There are two possible answers that I can see, C or D

a car moving on a road passes by kilometer 218 at 10:15 am and milestone 236 at 10:30 am. determine an average scalar speed in km / h over this stretch.

Answers

Answer:

v?

Explanation:

v = ∆s / ∆t

v =?

∆s = 236 - 218 = 18km

=t = 10: 30 - 10:15 = 15 minutes to hour 15/60 = 0.25h

v = 18 / 0.25

v = 72km / h

speed of 72km / h

Pls Answer I have a time limit!!!
How can mass be measured?
Group of answer choices

bathroom scale

spring scale

balance

scale

Answers

Answer:

Balance scale would be the answer

Answer:

The basic SI unit of mass is the kilogram (kg). In physics, mass is not the same as weight, even though mass is often determined by measuring the object's weight using a spring scale, rather than balance scale comparing it directly with known masses.

Balanced Scale

free brainlist but you have to get this right
100000000000000000000 times 200000000000000 times 3000000000000000 times 1 times 200000000000000000000000000000 times 5
You Can Use Caculator

Answers

Answer:

the answer is 6e+79

Answer:

yea the answer is 6e+79 i did use a couculater though

Explanation:

HEY CAN ANYONE PLS ANSWER DIS!!!!!!!

Answers

Answer:

A) the one with the lower boiling point.

Please mark me brainliest! Hope this helped!

God bless :)

Elements in the same______
are more chemically similar.
THIS IS URGENT!!!!

Answers

Answer:

group

Explanation:

And vote me brainliest

They are in the same group

Tyler traveled 36 km at a speed of 8 km/hr. Mark traveled 48 km at a speed of 10 km/hr. Who traveled the fastest? Who got to their destination first?

Answers

Answer:

Tyler got to his destination first. It took him 4.5 hours

Explanation:

Tyler's trip: 36 / 8 = 4.5 hrs

Mark's trip: 48 / 10 = 4.8 hrs

PLEASE HELP!!! a skateboard rolls down a ramp, starting from rest. after 3seconds, the skateboard’s velocity is 15m/s. what is the acceleration of the skateboarder?

Answers

V = Vi + at
15 = 0 + a (3)
15/3 = a
acceleration = 5 m/s^2


A man jumps from an airplane and does not
open
his parachute immediately. As he falls,
two forces act on him: the force mg due to
gravity and the force n, of air resistance. Now
he opens his parachute and begins to fall at
constant velocity.
What forces act upon him now?

Answers

Answer:

The forces acting on a skydiver jumping from a plane include the gravitational force and air resistance

Explanation: i, dumb so this is proabaly wrong

. Explain What makes the rock cycle a cycle?
SC.7.E.6.2 hi how do you do this

Answers

The Rock cycle is a model that describes the formation degradation, and regeneration of rocks as a result of sedimentation magma, and metamorphism. All rocks are made of minerals.

Rock circulation is the process by which rocks change continuously between three types igneous sedimentary and metamorphic. The three processes that transform one rock into another are crystallization, metamorphism erosion, and sedimentation. Any rock can be transformed into another rock by undergoing one or more of these processes. This creates a lock cycle.

Rock circulation is a fundamental concept that describes the transition between three rock types metamorphic igneous, and sedimentary rocks. Simply put it is a set of processes that create and transform rock types within the Earth's crust. Rock cycling by definition is the natural process by which sedimentary igneous, and metamorphic rocks are formed, transformed from one type to another, and destroyed.

Learn more about The Rock cycle here:-https://brainly.com/question/12863450

#SPJ1

the energy lost between trophic levels why?

Answers

Answer:

Explanation:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels

Which particle is used as a beam to treat cancer? electron neutron proton

Answers

Answer:neutron

Explanation:

Because it is similar to the motor neurons

Answer:

Proton

Explanation:

Proton therapy, also called proton beam therapy, is a type of radiation therapy. It uses protons rather than x-rays to treat cancer. A proton is a positively charged particle. At high energy, protons can destroy cancer cells.

does this curved graph show a function explain how you know

Answers

Answer:

No; the graph fails the vertical line test.

The vertical line test is a tool used to determine if we have a function. If we can draw a single straight vertical line through more than one point on the red curve, then the graph is said to have failed the vertical line test. Consequently, this leads to the relation not being a function.

For this circle graph, we can draw a vertical line through more than one point, which is why we don't have a function here.

Put another way, there are inputs (x) that produce more than one output (y), so that's why we don't have a function.

-BBBM

what is a blastocyst definition

Answers

Answer: Explanation:

Blastocyst, a distinctive stage of a mammalian embryo. It is a form of blastula that develops from a berrylike cluster of cells, the morula. A cavity appears in the morula between the cells of the inner cell mass and the enveloping layer.

Why does frost bite occur in mountain climbers ?​

Answers

Answer:

Because they are in places that may be extremely cold

Explanation:

For example take Mount Everest. This place is a very high mountain, and is very cold. Usually hikers would get a frost bite from how cold it is in there. According to google, "Frostbite is an injury caused by freezing of the skin and underlying tissues."

Acar accelerates from 5 ms to 27 mis in 10 seconds. What is the acceleration in m/s??

Answers

Explanation:

Acceleration is final velocity minus initial velocity divided by time.

a = (v − u) / t

a = (27 m/s − 5 m/s) / 10 s

a = 2.2 m/s²

A vector has an x-component
of 6.15 m and a y-component
of -3.88 m.
Find the direction of the vector.

Answers

The direction is θ degrees clockwise from the x axis (east direction)

tan θ = 3.88/6.15 = 0.631

Angle θ = 32.3 degrees

How is Impulse related to Force?

Answers

In classical mechanics, impulse (symbolized by or Imp) is the integral of a force, , over the time interval, , for which it acts. Since force is a vector quantity, impulse is also a vector quantity. Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the same direction.

a nucleus with four protons have a total positive charge of what

Answers

Answer:

The name of element is Beryllium.

Explanation:

Given that,

A nucleus with four protons have a total positive charge.

Suppose, what is the name of element ?

We know that,

The name of element which have 4 positive charge is Beryllium.

Beryllium is a element which is symbol is Be.

Atomic number of beryllium is 4 and atomic mass is 9.

The number of neutrons are 5.

Hence, The name of element is Beryllium.

ice floats in water. which must be true. A. Ice molecules have more mass than water molecules. B. Ice molecules have less mass than water molecules. C. A volume of ice has less mass than the same volume of water. D. one gram of ice has less volume than 1 g of water.

Answers

Answer:

B

Explanation:

As we all know,mass is the amount of substance a body contains. So because Ice's mass is less than water, that's why it's able to float. In other words,we say ice is less dense than water

A volume of ice has less mass than the same volume of water. Hence, ice floats in water. Option (C) is correct.

What is density?

The density of a material indicates the density of that material in a specific area. The density of a material is defined as its mass per unit volume. Density is a measurement of how closely matter is packed together. It is a distinct physical property of a specific object.

Archimedes, a Greek scientist, discovered the density principle. If you know the formula and understand the units, calculating density is simple. Density is represented by the symbol ρ, which can also be represented by the letter D.

Now, ice has less density compare to water. So, a certain volume of ice has less mass than the same volume of water. Hence, option(C) is correct.

Learn more about density here:

https://brainly.com/question/29775886

#SPJ2

If you are doing 4 sets of 10 repetitions of air squats you are doing _____ x _____ which equals to _____ air squats

Answers

Answer:

4x10=30

Explanation:

You can easily know it's multiplication when you see the sign. It gives you the number but you have to plug it in. So once you plug in the numbers then you should get either 4x10 or 10x4 which means both is equal to 40

Convert the following from scientific notation to standard notation.

1. 3.47 x 108
2. 7.94 x 103
3. 1.96 x 10-3
4. 4.50 x 109
5. 9.61 x 10-6
6. 2.02 x 105
7. 7.01 x 10-10
8. 4.44 x 101

Answers

Answer:

1.) 347,000,000

2.)7,940

3.)0.00196

4.)4,500,000,000

5.)0.00000961

6.)102,000

7.).000000000701

8.)44.4

Explanation:

when the power is positive, you just need to move decimal point to your right , for a number of times which is similar to the value of the power.

Eg. 3.47×10 raised to the power 8.

with this, move the decimal point to the right eight times which will be 347,000,000.

But when the power is negative, move the decimal point to the left for a number times which will be similar to the value of the power.

Eg. 1.96×10 raised to the power negative 3.

move the decimal point leftwards three times which will be 0.00196

Please mark as brainliest.

Other Questions
USE THESE IN A SENTENCE 1. antebellum-2. cede-3. controversial-4. distribute-5. fraudulent-6. individualism-7.lottery-8. revival-9. speculator-10. yeoman- Solve 4(x+2) - 5 = -21 Based on the passage above, what does audibly mean? A. quietly B. loudly C. shyly D. secretly a. Cash receipts from customers for services rendered __________ Operating __________Inflow b. Sale of long-term investments for cash __________Investing__________ Inflow c. Acquisition of PPE for cash _________ Investing _________ Outflow d. Payment of income taxes ______ Operating __________ Outflow e. Bonds payable issues for cash________ Financing __________ Outflow f. Payment of cash dividends declared in previous year _________ Financing _______ Outflow g. Purchase of short-term investments (not cash equivalents) for cash_______ Investing ______ Outflow h. Purchases of inventory for cash _______ Operating _________ Outflow choose the best decimal equivalent to 14/25. Marissa is choosing a four-digit PIN for her ATM card. The first digit must be a digit from 1 through 9. For the other three digits, she can choose any combination of digits 0 through 9, but may not repeat a digit. Which shows part of the sample space for Marissas PIN? Which model represents the intermediate step between glycolysis and the citric acid cycle?Model Mrs.Santos has two kinds of flowers in her garden. the ratio of lilies to daisies in her garden is 3:2if there are 12 lilies what is the total number of flowers in her garden Multiply (X^4+1)(3x^2+9x+2) What is crisis mean What is the sun's radius in miles. please answer this for me force(smaller)large pistonsmall pistondistancemoveddistancemovedAforce (greateliquid that cannotbe compressedThe weight of the car is 5000N. The area of the piston (B) that lifts the car is 0.(a) What is the pressure needed in the liquid to lift the car? find the perimeter what is a food chain help!! Kathryn had $20 saved and saved $5 each week, w, after. Write an algebraic expression to represent the amount she has saved after a certain number of weeks. Hey i really need someone help today this due today and need these ela questions done by today!!!! also Please no trolling answer and please read the book a long walk from water!!!!TEXT 1 :Since 1983, the Sudan Peoples Liberation Army (SPLA) and the Sudanese Government have been at war in southern Sudan. The conflict has already claimed more than 500,000 lives and displaced huge numbers of people. Among these were at least 20,000 children, mostly boys, between 7 and 17 years of age who were separated from their families. These lost boys of the Sudan trekked enormous distances over a vast unforgiving wilderness, seeking refuge from the fighting. Hungry, frightened and weakened by sleeplessness and disease, they crossed from the Sudan into Ethiopia and back, with many dying along the way. The survivors are now in camps in Kenya, the Sudan and UgandaQuestion 1: What's the main idea,detail 1 and detail 2?TEXT 2:This extraordinary exodus has its origins in traditional forms of migration. After being initiated into manhood, young adolescent boys in southern Sudan have generally been quite mobile. Organized into small groups of their peers, they would leave home for a period to look after cattle. Or they might head for the towns or cities to go to school or to seek their fortune, before eventually returning home. In addition, at times of stress families all over Africa send their children elsewhere to find safety, food, work and schooling.Question 2: What's the main idea,detail 1 and detail 2?TEXT 3:But during the war this process has escalated dramatically. Fearing they would be targeted as potential combatants, many boys left their villages and headed for cities such as Juba and Khartoum. Here they hoped to find work or schooling, though as these cities became saturated with migrants, the boys often had to resort to begging or petty crime.Question 3: What's the main idea ONLY???TEXT 4:.Others set out for refugee camps in Ethiopia. Some travelled with friends or relatives, others slipped away on their own at night. Few had any idea of what lay ahead of them. They believed the trek would last only a few days and discovered that they faced a harrowing journey of 6 to 10 weeks. Continually under threat, they would flee for their lives, losing their way in the wilderness. Often they lost everything en routeblankets, sheets, shoes, clothes and potsto soldiers, swindlers or bandits. Many fell victim to killer diseases. Others were so weakened by hunger and lack of sleep that they could go no further and sat down by the roadsideprey for lions and other animals.Question 4:What are the Hopes/Expectations and RealitiesLAST QUESTION:Take a moment to jot down the central idea. So far, the author shows... Which model represents an element? Which goal does therapy want to achieve?A. getting medicatedB. correcting all of one's problemsC. finding ways to healD. figuring out who is to blame for one's problems A line with a positive slope is parallel to one of the lines shown. What is its slope? Use the graph shown below.